25749884772 has 72 divisors (see below), whose sum is σ = 68259391200. Its totient is φ = 8486824896.

The previous prime is 25749884753. The next prime is 25749884773. The reversal of 25749884772 is 27748894752.

25749884772 is a `hidden beast` number, since 2 + 5 + 74 + 98 + 8 + 477 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (25749884773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62322 + ... + 235337.

It is an arithmetic number, because the mean of its divisors is an integer number (948047100).

Almost surely, 2^25749884772 is an apocalyptic number.

It is an amenable number.

25749884772 is an abundant number, since it is smaller than the sum of its proper divisors (42509506428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25749884772 is a wasteful number, since it uses less digits than its factorization.

25749884772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297767 (or 297753 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 63.

The spelling of 25749884772 in words is "twenty-five billion, seven hundred forty-nine million, eight hundred eighty-four thousand, seven hundred seventy-two".